DE66101C - Machine for the production of corner connections on boxes by means of channel-shaped BJechwinkel - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The present invention relates to a method and a machine to make glued or only loosely assembled or folded boxes or similar items on yours Corners and partly also at their edges with angles or fittings made of sheet metal to provide, whereby the durability and durability of these objects increases significantly will.

The machine is essentially characterized by one in its front frame vertically guided stamp with an interchangeable, cut out on its underside Prefskopf is provided and by means of a lever to be actuated by a step on a lever inserted in the frame of the machine and horizontally adjustable block or anvil can be pressed, the latter is shaped on its top according to the Prefskopfausschnitte.

On the corner of the box to be worked on, a channel-shaped and angled one is loosely bent Pushed the sheet metal angle and placed the box with this corner on the anvil, whereupon the spring is constantly in lever held in the raised position is depressed by means of the footstep in such a way that the prefskopf is pressed against the anvil and the sheet metal bracket is pressed intimately against the box pressing, whereby the warts attached to the top of the anvil push the sheet metal and the intermediate material of the box in corresponding recesses in the head cutout Press in in such a way that the sheet metal bracket holds in place and can no longer be pushed down from the box.

It is clear that the depressions mentioned are also found on the anvil and the corresponding Warts can be arranged in the Prefskopfausschnitte. You can also use two of the above Connect sheet metal angles with each other or manufacture them from one piece or a metal frame corresponding to the Schach telgröfse make, which then completely clad the boxes on two edges or all around with the sheet metal.

In the accompanying drawing, Fig. 1 is a partially vertical sectioned longitudinal view, Fig. 2 is a partially sectioned front view of a machine as described above has been described. 3 and 4 show a box provided with the sheet metal angles and FIGS. 5 and 6 show two forms the sheet metal bracket or the fitting.

As can be seen, the front part a ^{1 of} the frame α forms the guide for the vertically displaceable punch b, which is provided at its lower end with the exchangeable head c . The latter has at the bottom a channel-shaped cutout c ^] shaped corresponding to the box corner and in the same on both sides depressions c ² , as FIG. 2 shows. The upper end b ^{l of} the punch b is thickened so that the coil spring d lifting the punch can be supported. The pressing down of the punch b is effected by a lever f , which is rotatably fastened in the front frame by means of the bolt f ¹ and which moves into the

The fork-shaped upper end b ^{l of} the stamp is placed and is connected to the step lever h by the pull rod g . If the latter is moved downwards with the foot, the prefskopf c is pressed against an anvil K inserted in the front of the frame a, which can be pushed more or less out of the frame α as required and fixed by the clamping screw /.

The upper half of this anvil K \, as dictated by the shape of the corner of the box, is bevelled and provided with lugs K ² , which correspond to the depressions c ^{2 of the head of the prefecture.}

As already mentioned, a channel-shaped angle m, Fig. 5, made of sheet metal is loosely pushed onto the corner of the box to be processed, whereupon this corner of the box A is placed on the anvil K , as shown in Fig. 2 by dotted lines is indicated. Then the prefskopf c is pressed against the anvil by means of the step lever h , whereby the sheet metal bracket is pressed tightly against the material of the box and the lugs K ^{2 are} pressed into the sheet metal bracket and the material in between.

In order to bring about the lifting of the step h and the lever f each time after pressing has taken place, a spring ο is arranged in the frame α of the machine, the lower end of which is at 0 ^l on '.' g of the tie rod and whose upper end to the frame of the machine α is fixed; so that upon depression h of the step, this spring is tensioned and the tendency gets to lift the step h.

A running weight ^{1/2 is} attached to the lever f , by the displacement of which one can support the force exerted on the step h to a greater or lesser extent, depending on whether this running weight is removed from the pivot point f ^l or is approaching this point.

In Fig. 3 a box A provided with the fitting angle m is drawn in vertical section and Fig. 4 shows a part of this box in a perspective view.

Instead of two sheet metal angles m , one can also use a sheet metal angle M which is bent twice at right angles, as shown in FIG. 6. As is easy to understand, the box is then covered by this angle at two corners and at the edge connecting these two corners. It is also possible to use metal frames that are bent to match the shape of the box and that cover the top edge all around.

^{The sheet metal angles adhere very firmly to the box as a result of the indentation m 1} , FIGS. 3 and 4 produced by the machine, acting like a rivet, whereby the durability of the latter is significantly increased.

Claims (1)

Patent claim: A machine for making corner connections on boxes by means of trough-shaped sheet metal angles, in which machine the punch (b) is provided with an exchangeable head (c) with indentations / C ² J cut out on the underside of the box corner accordingly and by means of a foot step ( h) moving lever (f) can be pressed onto an adjustable anvil (K) carrying the warts (K ² J ), on which the box to be connected by means of the sheet metal angle (m) is placed. 1 sheet of drawings.